voted = dict() #创建一个散列表
def check_voter(name):
if voted.get(name): #检查他是否在散列表中
print('已存在')
else:
voted[name] = True
print('投票成功!')
check_voter('小红')
check_voter('小明')
check_voter('小强')
check_voter('小明')
check_voter('小王')
check_voter('小李')
check_voter('小红')
check_voter('小庄')
check_voter('小明')
check_voter('小八')